<h2>Choose size</h2>
<form method="POST" action="flow.htm">
    <input type="radio" value="SMALL" name="size">
    Small (12-inch)<br/>
    <input type="radio" value="MEDIUM" name="size">
    Medium (14-inch)<br/>
    <input type="radio" value="LARGE" name="size" checked>
    Large (16-inch)<br/>
    <input type="radio" value="GINORMOUS" name="size">
    Ginormous (20-inch)<br/>

    <input type="hidden" name="_flowExecutionKey"
           value="${flowExecutionKey}">

    <input type="submit" class="button"
           name="_eventId_submit" value="Continue">
    <input type="submit" class="button"
           name="_eventId_cancel" value="Cancel">
</form>
